JPS6123944A - Method for measuring grain size of powdery and granular material - Google Patents
Method for measuring grain size of powdery and granular materialInfo
- Publication number
- JPS6123944A JPS6123944A JP14492184A JP14492184A JPS6123944A JP S6123944 A JPS6123944 A JP S6123944A JP 14492184 A JP14492184 A JP 14492184A JP 14492184 A JP14492184 A JP 14492184A JP S6123944 A JPS6123944 A JP S6123944A
- Authority
- JP
- Japan
- Prior art keywords
- powdery
- granular material
- powder
- sizes
- particle size
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000008187 granular material Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 16
- 239000002245 particle Substances 0.000 claims abstract description 44
- 230000005855 radiation Effects 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 34
- 238000009826 distribution Methods 0.000 abstract description 15
- 238000012545 processing Methods 0.000 abstract description 5
- 230000001678 irradiating effect Effects 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 7
- 238000003384 imaging method Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 208000031968 Cadaver Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 210000000003 hoof Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は数百μｍ以下の微粒子と、数ｂμｍ超から数
閣及び数十飽の粒体とが混在している粉粒体、例えば焼
結鉱原料の粒度及び粒度分布をプロセスでオンラインに
リアルに測定する方法に関するものである。Detailed Description of the Invention (Field of Industrial Application) This invention is applicable to powder and granular materials in which fine particles of several hundred micrometers or less and particles of several micrometers or tens of micrometers coexist, such as sintered particles. The present invention relates to a method for realistically measuring the particle size and particle size distribution of a condensate raw material online in a process.
（従来の技術〉
粉粒体の粒度測定にあたっては、従来はＪＩＳＭ８１０
５−１９７０の規定に従って設粒体群からサンプルを採
取し、これ・を篩分けて粒度及び粒度分布を測定してお
シ、そのためには、多大の労力と時間を必猥とするばか
りでなく、篩分は機の騒音、更にはその保守にも多大の
労力と時間を要する。この’＃ｔ （ｔ ＊特に重要な
のはｔｌｉｗ網の摩耗による鞘度低下が生じないように
する管理と、篩網の目詰シによる祠反低下を防ぐための
管理で、これはプロセスの生産性にまで影響する。(Conventional technology) Conventionally, JISM810 was used to measure the particle size of powder and granules.
5-1970, a sample is taken from the group of particles, and the sample is sieved to measure the particle size and particle size distribution. The sieving process requires a lot of effort and time due to the noise caused by the machine and its maintenance. This '#t (t *Particularly important is management to prevent a decrease in sheath density due to abrasion of the tliw screen, and management to prevent a decrease in sheath quality due to clogging of the sieve screen. This is important for improving process productivity. It even affects.
（発明が解決しようとする問題点］
このようにＪＩＳＭ８１０５−１９７０による従来の粉
粒度又は扮粉灰分布測定方法は、長時間且つ多大の労力
を要するにも拘らず、自然体又は使用状！訳のｍ体分陥
が避けられず、実態を籠侯推側するＫととまることと、
その長時間と多大の労力はとりもなおきずこの置換作業
、つまり、使用状態又は自然体の解体、分蹄に費きれ％
測定精度の向上に直脹的には寄与しないこととにおいて
、改吾の余地かめる。しかも粉粒体はよく知られている
ように厘なルありているため、後述される本発明方法で
用いる撮像段階でそのまま紛枚友金測定すると単体を分
離してみることが困難である。この点は測定結果の致命
傷となる。(Problems to be Solved by the Invention) As described above, the conventional powder particle size or powder ash distribution measuring method according to JISM8105-1970 requires a long time and a lot of effort, but it is difficult to measure the particle size or powder ash distribution in a natural manner or in a manner of use! It is impossible to avoid the fall of the body, and it ends with K, who is on the side of the real situation,
The long hours and a great deal of effort are spent on replacement work, that is, dismantling the used or natural body, and dividing the hoof.
There is room for improvement as it does not directly contribute to improving measurement accuracy. Moreover, as it is well known, powder and granules have a large size, so it is difficult to separate individual particles when measuring the powder as is in the imaging step used in the method of the present invention, which will be described later. This point is fatal to the measurement results.
（問題点を解決するための手段う
本発明は、上記した従来技術の問題点を全く解消した粉
粒体の粒度及び粒度分布の測定方法を提供することを目
的とするもので、その構成は粉粒体群に放射線を照射し
て、粉粒体群の任意の面の断面像を形成せしめ、該断面
像内の谷粉粒体像を縮φし、各粒子を単体分離判別処理
して後、該縮小寸法と残存寸法とを加算して粉粒体群中
の香粉粒体粒度を算出することを％黴とするものである
。(Means for Solving the Problems) The object of the present invention is to provide a method for measuring the particle size and particle size distribution of powder and granular materials that completely eliminates the problems of the prior art described above, and the structure thereof is as follows: The powder group is irradiated with radiation to form a cross-sectional image of an arbitrary surface of the powder group, the valley powder image in the cross-sectional image is reduced in diameter, and each particle is separated and discriminated. After that, the reduced size and the remaining size are added to calculate the particle size of the flavor powder granules in the powder group.
本発明では粉粒体を実在する粉粒体群のまま非接触に徂
１ｊ定し、実際の存在状態で粉粒体群を解体。In the present invention, the powder and granular material is determined in a non-contact manner as an existing powder and granular material group, and the powder and granular material group is disassembled in the actual state of existence.
又は分Ｎ％或いは篩分は分級することなく＠接。Or N% or sieve fraction is @ without classification.
即時に粒度又は粒度分布を測定するものである。It measures particle size or particle size distribution instantly.
このように撮像、縮小、加算処理して粒度を求めるので
、粉粒体には非接触で測定でき、かつ粉粒体の自然状態
のままで側足できるので、使用前に測定すると粉粒体の
加工時のままの粉粒度、及び粒度分布が測定できる。Since the particle size is obtained through imaging, reduction, and addition processing in this way, the measurement can be performed without contacting the powder or granule, and the particle size can be measured in its natural state. The particle size and particle size distribution of the powder as it is processed can be measured.
又、＃粒体が皿なシ合っていても、本発明方法の如く続
く処理を行うことによって正確、迅速に的確な粉粒度及
び粉粒度分布が測定できる。Furthermore, even if the #granules are in a dish-like shape, the particle size and particle size distribution can be measured accurately, quickly, and accurately by performing the subsequent processing as in the method of the present invention.
本５ＡすＪ測芝方法は異種の粉粒体の混合物の粉札度又
は粉石度分布を測定する場合に特に顕著な効果が得られ
る。This turf measuring method is particularly effective when measuring the fineness or fineness distribution of a mixture of different types of powder and granules.
（作用〕
本発明は上記のように構成したので、被測定粉粒体の使
用状態での粒度及び粒度分布を非接触で測定することが
できる。この点について以下に図面を参照しつつ説明す
る。(Function) Since the present invention is configured as described above, the particle size and particle size distribution of the powder or granular material to be measured in the state of use can be measured in a non-contact manner.This point will be explained below with reference to the drawings. .
山１］斌する＃枝体を測定装置下を使用状態のまま連続
的に＋１ｊ方向に走置するか、又は同様に移動中の粉粒
体層から例えば笑公昭５６−１３６３９号公報で提′−
Ａされているコアーサンシラーによって１史用状悪のま
までコアサンプルを採取して、これにＸ線、ｒ線、中性
子等の放射線を照射する。このときの照射は横断面的に
父はＭ断面的に行って％而の隊を得る。[Mountain 1] The flying #branch body is continuously moved in the +1j direction under the measuring device in the used state, or similarly, from the moving powder layer, it is −
A core sample is collected using a core sun shielder in an unfavorable state and is irradiated with radiation such as X-rays, r-rays, and neutrons. At this time, irradiation is carried out cross-sectionally and M-cross-sectionally to obtain % of the corps.
この−例として率一種粒子測定で得た横断面像全第１図
（ＩＪに示す。次に（２）の如（５０’０μｍ以下をＯ
Ｔ値で区分除去すると異に５００μｍ以下の総面積を出
し、続いて（８）の如＜ＳＯＯμｍ超の各粉像を各粉粒
体毎均等に像を縮小しくさらに言えば。As an example of this, the complete cross-sectional image obtained by particle measurement is shown in Figure 1 (IJ).
If the T value is used for segmentation and removal, a total area of 500 μm or less is obtained, and then each powder image of <SOO μm or more is reduced equally for each powder or granule as shown in (8).
各粉像はその周縁から等距離に縮小され、従って谷像は
原形を保つ〕、更に（４）に示す如く、単体分離の上、
各粒子毎の面積及び周辺長を出し１周辺長×（３）の縮
小距離で各粒子毎の元の面積を算出しこれをもとＫ（２
）と（４）の統計によってＳＨＦ分布を求める。[Each powder image is reduced to the same distance from its periphery, so the valley image maintains its original shape].Furthermore, as shown in (4), after separation,
Calculate the area and peripheral length of each particle, calculate the original area of each particle by the reduction distance of 1 peripheral length x (3), and based on this, K (2
) and (4) to determine the SHF distribution.
尚複合ｌｆＣ科の場合は５手Ｊ＠ （２Ｊを粒子の総面
積への算出とおきかえ、手順（４）で算出した粒体の総
崩８ｔＢとから匈転后。。（％）で５００μｍ以下の面
積率を求める。In addition, in the case of composite lfC family, 5 hands J@ (replace 2J with the calculation to the total area of the particles, and convert from the total collapse of the particles calculated in step (4) of 8tB...(%) to 500μm or less. Find the area ratio.
これを横Ｍ ｃｍ １＃！ｈ縦断面像毎に行うことによ
って従来の篩分法では測定できなかった粉粒体の形状係
数も算出できる。This is horizontal M cm 1#! By performing this for each vertical cross-sectional image, it is also possible to calculate the shape factor of the powder, which could not be measured by conventional sieving methods.
（実施例）
第 １ 表
を簡に礪充したもの（ｈ＝高さ）
ａ区分口のコアサンプルはコアサンプラーで採取したも
の
使用放射線：Ｘ線
電圧 ：１４０ＫＶ
撮祿処理方法：第１図（ＩＪ〜（４）による。区分イで
は単一種５区分口では複合原料
としての処理
測定結果
（盪・Ｊｌ皺はＪＩＳＭ８１０５−１９７０による従来
の測定方法による測定値。(Example) A simplified version of Table 1 (h = height) The core sample at the a section entrance was collected with a core sampler Radiation used: X-ray voltage: 140KV Imaging and processing method: Figure 1 ( According to IJ ~ (4). In Category A, the processing measurement results for single species in 5 categories are as composite raw materials (2, Jl wrinkles are the values measured by the conventional measurement method according to JISM8105-1970.
・測定粒度分布は本発明方法で谷サンプルの高さ方向の
横断面１０面、縦断面５面、から得ｆｃ粒度別構成比率
算出値。- The measured particle size distribution is a calculated value of the composition ratio by fc particle size obtained from 10 cross sections and 5 longitudinal sections of the valley sample in the height direction using the method of the present invention.
第２奴に明らかなように本発明方法によると単味の粉粒
体はもとよシ、混合粉枝体も従来方法と同等の測定結果
が得られる。As is clear from the second example, according to the method of the present invention, measurement results equivalent to those of the conventional method can be obtained not only for single powder particles but also for mixed powder particles.
従来方法はサンプルの採取から数時間を要したが、本発
明方法は数分程度で完了した。The conventional method required several hours from sample collection, but the method of the present invention was completed in about a few minutes.
（発明の効果り
本発明は試料とは非接触で粉 粒度及びその分布並びに
形状係数が測定でき、かつ測定にあたっては使用状態或
いは自然体を破壊又は分解、更には分離することなく測
定でき、その測定は必要に応じて迅速、的確に、例えば
オンラインでリアルに測定結果のアウトプットも可能で
、制御装置と結合して、粉 粒度の調整をはじめ、混合
粉粒体の混合粒度分布の調整も可能にする等、もたらす
効果は極めて大ぎい。(Effects of the invention) The present invention can measure the particle size, its distribution, and shape factor without contacting the sample, and can measure without destroying, decomposing, or even separating the used or natural body. If necessary, it is possible to quickly and accurately output measurement results in real time, for example online, and when combined with a control device, it is possible to adjust the powder particle size as well as the mixed particle size distribution of mixed powder and granular materials. The effects it brings are extremely large.
４図面の１７ｉ」率な説明
第ｌ〆Ｉ （ＩＪ〜（４）は本発明方法による粉 粒度
測定方法を説す」するサンプルの横断面像とその処理＠
、第２図、 ′ＡｊＪ３図は本発明の実施例における代
弐的な撮像を示すサンプル高さ方向中央の横断面撮像で
ある4 Drawing 17i "Explanation No. 1 (IJ ~ (4) describes the powder particle size measurement method according to the method of the present invention") Cross-sectional image of the sample and its processing @
, Fig. 2, and Fig. 3 are cross-sectional images taken at the center of the sample in the height direction, showing alternative imaging in the embodiment of the present invention.
Claims (1)
面の断面像を形成せしめ、該断面像内の各粉粒体像を縮
小し、各粒子を単体分離判別処理して後、該縮小寸法と
残存寸法とを加算して粉粒体群中の各粉粒体粒度を算出
することを特徴とする粉粒体の粒度測定方法。(1) Irradiate the powder group with radiation to form a cross-sectional image of an arbitrary surface of the powder group, reduce each powder image in the cross-sectional image, and separate and discriminate each particle as a single particle. A method for measuring the particle size of a powder or granule, comprising: calculating the particle size of each powder or granule in a group of powder or granules by adding the reduced dimension and the remaining dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14492184A JPS6123944A (en) | 1984-07-12 | 1984-07-12 | Method for measuring grain size of powdery and granular material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14492184A JPS6123944A (en) | 1984-07-12 | 1984-07-12 | Method for measuring grain size of powdery and granular material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6123944A true JPS6123944A (en) | 1986-02-01 |
| JPH032425B2 JPH032425B2 (en) | 1991-01-16 |
Family
ID=15373322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14492184A Granted JPS6123944A (en) | 1984-07-12 | 1984-07-12 | Method for measuring grain size of powdery and granular material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6123944A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57147866A (en) * | 1981-03-06 | 1982-09-11 | Nec Corp | Battery |
| JPS62194448A (en) * | 1986-02-21 | 1987-08-26 | Jeol Ltd | Method for analyzing particle image in image |
| JPS62194449A (en) * | 1986-02-21 | 1987-08-26 | Jeol Ltd | Method for analyzing particle image in image |
| US6686095B2 (en) | 1999-12-28 | 2004-02-03 | Kabushiki Kaisha Toshiba | Gel electrolyte precursor and chemical battery |
| EP2508868A3 (en) * | 2011-04-08 | 2017-12-27 | Rolls-Royce plc | An apparatus and a method of determining the proportions of different powders in a powder |
| JP2018135599A (en) * | 2017-02-22 | 2018-08-30 | Ｊｆｅスチール株式会社 | Inspection method of carbonaceous inner package granular particles and production method of carbonaceous inner package sintered ore |
-
1984
- 1984-07-12 JP JP14492184A patent/JPS6123944A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57147866A (en) * | 1981-03-06 | 1982-09-11 | Nec Corp | Battery |
| JPS62194448A (en) * | 1986-02-21 | 1987-08-26 | Jeol Ltd | Method for analyzing particle image in image |
| JPS62194449A (en) * | 1986-02-21 | 1987-08-26 | Jeol Ltd | Method for analyzing particle image in image |
| US6686095B2 (en) | 1999-12-28 | 2004-02-03 | Kabushiki Kaisha Toshiba | Gel electrolyte precursor and chemical battery |
| US7267910B2 (en) | 1999-12-28 | 2007-09-11 | Kabushiki Kaisha Toshiba | Chemical battery containing gel electrolyte based on crosslinked epoxy compound having an alicyclic structure |
| EP2508868A3 (en) * | 2011-04-08 | 2017-12-27 | Rolls-Royce plc | An apparatus and a method of determining the proportions of different powders in a powder |
| JP2018135599A (en) * | 2017-02-22 | 2018-08-30 | Ｊｆｅスチール株式会社 | Inspection method of carbonaceous inner package granular particles and production method of carbonaceous inner package sintered ore |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH032425B2 (en) | 1991-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |